Bent air-out noise reduction cover for high-voltage motor

Abstract

The utility model relates to the technical field of high-voltage motors, in particular to a bent air-out noise reduction cover for a high-voltage motor, which comprises two half cover bodies, an air outlet is arranged on the top surface of each half cover body, an air guide pipe is mounted at the position of each air outlet, and the air guide pipes are connected with the two half cover bodies. The air guide pipe comprises an air inlet section, a slow flow section and an air outlet section, and the inner contour of the slow flow section is a 1 / 4 circular ring; according to the split type silencing cover, the two half cover bodies are arranged to form the split type silencing cover, the split type silencing cover is fixed after being pushed in place, and the cover body assembling difficulty is greatly reduced; the noise reduction cover has the advantages that sound in the noise reduction cover is prevented from being directly exhausted by the aid of the flow slowing section with radian, the noise reduction effect of the air outlet is further effectively achieved by the aid of the flow blocking plate, the problem that high noise can be directly exhausted out of the cover from the straight cylindrical air outlet is solved, and the noise reduction effect of the noise reduction cover in use is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high -voltage motor technical field, specifically, relate to the high -voltage motor silencer of bending type air outlet. BACKGROUND

[0002] High -voltage motor is mainly used in large -scale high -voltage motor power plant, chemical plant etc. place;If serious failure leads to motor burn, will seriously affect the normal production, cause huge economic loss, therefore must provide perfect protection to it.

[0003] In the related art, high -voltage motor is installed, and the protection is carried out by the outer ring enclosure, or the high -voltage motor is covered to realize effective protection effect with the protective cover, wherein the outer ring enclosure is lower in outdoor practicability;The straight -cylindrical air outlet can only play a blocking effect, and the high noise in the operation of the high -voltage motor can be directly discharged outside the cover.

[0004] Therefore, how to solve the technical problem that the traditional cover body air outlet exists and causes high noise is a technical problem that needs to be solved in the field.

[0005] It should be noted that the above information disclosed in the background section is only used to understand the background of the present application, and therefore, the above description is not considered to constitute prior art information. CONTENT OF THE UTILITY MODEL

[0006] The utility model provides a kind of high -voltage motor silencer of bending type air outlet to solve above-mentioned technical problem.

[0007] To achieve the above object, the utility model embodiment provides a kind of high -voltage motor silencer of bending type air outlet, comprising: two half cover bodies, the top surface of the half cover body is equipped with air outlet, air outlet position is equipped with air duct, the air duct includes wind inlet section, slow flow section and air outlet section, and the inner contour of the slow flow section is 1 / 4 circular ring.

[0008] As a preferred embodiment, the wind inlet section, the slow flow section and the air outlet section are integrally formed.

[0009] As a preferred embodiment, the wind inlet section is installed at the air outlet position, and the slow flow section is connected between the wind inlet section and the air outlet section.

[0010] As a preferred embodiment, the opening of the air outlet section faces downward.

[0011] As a preferred embodiment, the inner wall of the wind inlet section, the slow flow section and the air outlet section is provided with a plurality of flow resistance plates.

[0012] As a preferred embodiment, the flow resistance plate is fixedly connected with the inner wall of the air guide pipe, and the flow resistance plate and the rest of the inner wall of the air guide pipe form exhaust gaps, and all the exhaust gaps are communicated to form a zigzag channel.

[0013] As a preferred embodiment, the semi-cover body comprises a bottom support part, a middle supporting part and a top cover, the middle supporting part is installed on the top surface of the bottom support part, and the top cover is fixed on the top surface of the middle supporting part.

[0014] As a preferred embodiment, the vertical section of the bottom support part and the top cover is converging from bottom to top.

[0015] As a preferred embodiment, the side surface and the bottom surface of the bottom support part, the side surface of the middle supporting part and the side surface of the top cover are fixed with assembling pieces.

[0016] As a preferred embodiment, the assembling piece comprises a connecting plate, a mounting hole is formed on the connecting plate, the surface of the connecting plate is covered with a felt plate, and a rubber skin layer is arranged on the surface of the felt plate.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] By setting two semi-cover bodies to form a split type soundproof cover, fixing is realized after pushing to the position, and the cover assembly difficulty is greatly reduced.

[0019] By setting the flow slowing section with the arc, the direct sound inside the soundproof cover is avoided, and the flow resistance plate is further arranged to effectively reduce the noise effect of the exhaust port, solve the problem that high noise is directly discharged from the straight cylinder-shaped air outlet to the outside of the cover, and improve the noise reduction effect of the soundproof cover in use. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model will be further described below in combination with the drawings and examples.

[0021] Figure 1 It is a perspective view of the optimal embodiment of the utility model curved air outlet high-voltage motor soundproof cover.

[0022] Figure 2 It is a perspective view of the optimal embodiment of the utility model semi-cover body.

[0023] Figure 3 It is a perspective view of the optimal embodiment of the utility model air guide pipe.

[0024] Figure 4 It is a sectional view of the optimal embodiment of the utility model air guide pipe.

[0025] Wherein, 1, half cover body; 11, bottom support part; 12, middle support part; 13, top cover; 14, assembling piece; 15, air outlet; 2, air guide pipe; 21, air inlet section; 22, slow flow section; 23, air outlet section; 24, flow resistance plate. DETAILED DESCRIPTION

[0026] The utility model will be explained in further detail in combination with the drawings. These drawings are all simplified schematic diagrams, and only schematically show the basic structure of the utility model, so they only show the components related to the utility model.

[0027] Please refer to Figure 1 and combine Figure 2 , Figure 1 It is the perspective drawing of the optimal embodiment of the utility model's curved air outlet high-voltage motor soundproof cover. Figure 2 It is the perspective drawing of the optimal embodiment of the utility model's half cover body. As Figures 1-2 indicated, at least one embodiment provides a curved air outlet high-voltage motor soundproof cover, which comprises two half cover bodies 1, and the two half cover bodies 1 are spliced together to form a soundproof cover. The purpose of this design is to facilitate the assembly of the soundproof cover on the use platform of the high-voltage motor. Since the high-voltage motor is relatively large in size, the traditional cover body needs to be lifted to a certain height and then dropped and aligned before being fixed. Therefore, in this embodiment, the split soundproof cover does not need to be lifted and can be fixed on the side of the high-voltage motor after being pushed into place, greatly reducing the difficulty of cover body assembly. In addition, in order to achieve the air exchange effect, an air outlet 15 is provided on the top surface of the half cover body 1, and an air guide pipe 2 is installed at the position of the air outlet 15.

[0028] It needs to be additionally pointed out that the half cover body 1 is made of a metal sheet material, and the half cover body 1 has an inner surface and an outer surface. The inner surface is coated with sound-absorbing material to improve the noise reduction effect.

[0029] Please continue to refer to Figure 1 and combine Figure 2 . As Figures 1-2 indicated, the half cover body 1 comprises a bottom support part 11, a middle support part 12, and a top cover 13. The middle support part 12 is installed on the top surface of the bottom support part 11, and the top cover 13 is fixed on the top surface of the middle support part 12. The air outlet 15 is provided on the top cover 14, and the air outlet is centrally arranged on the top cover 14 to provide uniform air exchange.

[0030] Please continue to refer to Figure 1 and combine Figure 2 . As Figures 1-2As shown in the drawings, the vertical section of the bottom support part 11 and the top cover 13 are all converging from bottom to top. The side surface and bottom surface of the bottom support part 11, the side surface of the middle support part 12 and the side surface of the top cover 13 are all fixed with assembling pieces 14. The assembling pieces 14 include connecting plates, mounting holes are formed on the connecting plates, the surface of the connecting plates is covered with felt plates, and a rubber skin layer is arranged on the surface of the felt plates, which not only avoids the rigid connection of the bottom surface of the silencer and the use platform during installation, thereby avoiding the problem of transmission noise of rigid connection, but also enhances the sealing degree of the joint gap of the two half cover bodies 1, and further plays the effect of sound insulation.

[0031] Please continue to refer to Figure 1 and combine Figure 3 , Figure 3 It is a perspective view of the optimal embodiment of the air guide pipe of the utility model. As shown in the drawings, Figure 1 and Figure 3 The composition of the air guide pipe 2 will be specifically described below. The air guide pipe 2 includes an air inlet section 21, a slow flow section 22 and an air outlet section 23. The inner contour of the slow flow section 22 is a 1 / 4 circular ring. The air inlet section 21, the slow flow section 22 and the air outlet section 23 are designed in one piece. The air inlet section 21 is installed at the position of the air outlet 15, the slow flow section 22 is connected between the air inlet section 21 and the air outlet section 23. The opening of the air outlet section 23 faces downward, that is, the airflow flows upward from the position of the air inlet section 21, along the inner wall of the slow flow section 22 and finally is discharged from the outlet below the air outlet section 23. The position of the slow flow section 22 is designed as an elbow pipe to avoid the direct discharge of sound to the outside of the cover.

[0032] Please continue to refer to Figure 3 and combine Figure 4 , Figure 4 It is a sectional view of the optimal embodiment of the air guide pipe of the utility model. As shown in the drawings, Figures 3-4 In order to further enhance the noise reduction effect, a plurality of flow resistance plates 24 are arranged on the inner walls of the air inlet section 21, the slow flow section 22 and the air outlet section 23. The flow resistance plates 24 are fixedly connected with part of the inner walls of the air guide pipe 2, and the flow resistance plates 24 and the remaining inner walls of the air guide pipe 2 form air discharge gaps, all the air discharge gaps are communicated to form a zigzag channel. In addition, the air guide pipe 2 has a left side wall and a right side wall, one flow resistance plate 24 is arranged on the left side wall, the next adjacent flow resistance plate 24 is arranged on the right side wall, and they are arranged in sequence and at intervals to form a zigzag channel. The zigzag channel increases the sound reflection length in the effective path, reduces the noise decibels when the outlet is discharged, that is, improves the noise reduction effect.

[0033] In summary, by setting two half cover bodies to form a split type sound cover, fixing is realized after pushing into position, greatly reducing the cover assembly difficulty; by setting the flow slowing section 22 with an arc, direct sound discharge from the inside of the sound cover is avoided, and the flow blocking plate 24 is additionally set, further effectively playing a noise reduction effect of the air outlet 15, solving the problem that high noise is directly discharged from the straight cylinder air outlet to the outside of the cover, and improving the noise reduction effect of the sound cover during use.

[0034] With the above ideal embodiments of the present application as inspiration, through the above description, relevant personnel can certainly make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and must be determined according to the scope of the claims.

Claims

1. A high voltage motor silencer of the bend air outlet type, characterized in that, The utility model relates to a half cover body (1) for air exhaust, and the half cover body (1) is provided with a wind guide pipe (2) on the top surface. The wind guide pipe (2) comprises an air inlet section (21), a flow slowing section (22) and an air outlet section (23), and the inner contour of the flow slowing section (22) is a quarter of a circular ring.

2. The sound suppression cover for a high voltage motor with a curved air outlet according to claim 1, characterized in that: The air inlet section (21), the flow slowing section (22) and the air outlet section (23) are integrally formed.

3. The sound suppression cover for a high voltage motor with a curved air outlet according to claim 2, characterized in that: The air inlet section (21) is installed at the air exhaust position, the flow slowing section (22) is connected between the air inlet section (21) and the air outlet section (23), and the air outlet section (23) is downwardly open.

4. The sound enclosure for a high voltage electric machine with a curved air outlet according to claim 3, characterized in that: The inner wall of the air inlet section (21), the flow slowing section (22) and the air outlet section (23) is provided with a plurality of flow resistance plates (24).

5. The sound enclosure for a high voltage electric machine with a curved air outlet according to claim 3, characterized in that: The flow resistance plates (24) are fixedly connected with part of the inner wall of the wind guide pipe (2), and the flow resistance plates (24) and the rest of the inner wall of the wind guide pipe (2) form air exhaust gaps, and all the air exhaust gaps are communicated to form a zigzag channel.

6. The sound enclosure for a high voltage electric machine with a curved air outlet according to claim 5, characterized in that: The half cover body (1) comprises a bottom support part (11), a middle supporting part (12) and a top cover (13), the middle supporting part (12) is installed on the top surface of the bottom support part (11), and the top cover (13) is fixed on the top surface of the middle supporting part (12).

7. The sound enclosure for a high voltage electric machine with a curved air outlet according to claim 1, characterized in that: The vertical section of the bottom support part (11) and the top cover (13) is a converging shape from bottom to top.

8. The sound enclosure for a high voltage electric machine with a curved air outlet according to claim 7, characterized in that: The side surface and the bottom surface of the bottom support part (11), the side surface of the middle supporting part (12) and the side surface of the top cover (13) are fixedly provided with assembling pieces (14).

9. The sound enclosure for a high voltage electric machine with a curved air outlet according to claim 8, characterized in that: The assembling piece (14) comprises a connecting plate, the connecting plate is provided with mounting holes, the surface of the connecting plate is covered with a felt plate, and the surface of the felt plate is provided with a rubber skin layer.

10. The sound enclosure for a high voltage electric machine with a curved air outlet according to claim 9, characterized in that: ​

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